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Looking To Buy a 3 Carat Princess Cut Lab Grown Diamond?
Search through our inventory below or book a visit to our London Showroom.
Round
Princess
Cushion
Emerald
Pear
Oval
Marquise
Radiant
Asscher
Heart
European Cut
Old Miner
Rose
Briolette
Bullets
Calf
Flanders
Half Moon
Hexagonal
Kite
Lozenge
Octagonal
Pentagonal
Shield
Square
Star
Tapered Baguette
Baguette
Tapered Bullet
Trapezoid
Triangular
Trilliant
Other
A 3-carat princess cut diamond is a bold and modern choice for engagement rings or luxury jewellery, showcasing sharp angles and exceptional brilliance. Its square shape and intricate facets reflect light beautifully, offering a clean, contemporary alternative to round or cushion cuts.
Lab-grown diamonds are genuine diamonds, created in advanced laboratories that replicate natural diamond-growing conditions. They are chemically, physically, and optically identical to natural diamonds—only their origin differs. Lab-created stones are 30% to 50% more affordable than mined diamonds, giving you greater value without compromising quality or beauty.
At RÊVE Diamonds, all of our lab-grown diamonds are independently certified, usually by IGI or GIA—two of the most respected authorities in gemology.
Call us on 020 3585 2295 or chat with our diamond experts to find your perfect 3 carat princess cut lab-grown diamond today.
Prices range from £2,500 to £20,000 depending on cut, colour, clarity, and overall quality.
A 3-carat diamond weighs approximately 0.6 grams (600 milligrams).
Princess cut diamonds are square or slightly rectangular. Typical dimensions:
Length: 8.0 mm – 9.5 mm (avg. 8.6 mm)
Width: 8.0 mm – 9.5 mm (avg. 8.6 mm)
Depth: 5.2 mm – 6.8 mm (avg. 6.0 mm)